Okay, up front, Mega Man 2.5D is not endorsed by Capcom in any way. That means, it could receive a cease and desist at any time but while it is available, enjoy it. Mega Man 2.5D takes tiles and other graphics from many of the original titles and remixes them and creates something akin to a ‘directors cut’ feeling release.
One thing that sets Mega Man 2.5D apart from official releases is the two player co-op mode. Something like Street Fighter Alpha’s Dramatic Battle option, two players can take on the game, and bosses.
Shadow Man’s stage is the only stage in the demo, which is co-op only, but more is promised as the game develops. So grab a friend, grab the demo (while you can) and enjoy Mega Man 2.5D on your computer.